**Abstract**

Anxiety disorders are the most common of all psychiatric illnesses and result in significant functional impairment and distress. In DSM 5, anxiety disorders are divided into eleven subgroups. Anxiety, which we consider normal (mild and moderate anxiety), plays an important role in the development of the individual. However, if the level of anxiety increases, it may lead to mental problems. A high level of anxiety, long duration, and intensification of anxiety symptoms may cause anxiety disorders. These are; separation anxiety disorder, selective mutism, panic disorder, agoraphobia, specific phobia, social anxiety disorder, generalized anxiety disorder, other unspecified anxiety disorder, anxiety disorder related to another medical condition, anxiety disorder caused by substance or medication, anxiety disorders caused by substances and medication are unspecified anxiety disorders. Treatment methods used in anxiety disorders are individual psychotherapy, cognitive therapy, behavioral therapy, systematic sensitization, exposure, and psychopharmacology.

**Keywords:** anxiety disorders, panic disorder, phobia, social anxiety disorder, generalized anxiety disorder, selective mutism
